British mother in her 40s suspected of joining the Islamic State and warns that she will behead Christians with a ‘blunt knife’

A British mother who once sang in an all girl-rock band may have converted to Islam and be threatening to behead Christians with a ‘blunt knife’, it has been revealed.

Investigators have revealed the British woman who travelled to the middle eastern country after marrying a known British jihadist may be Sally Jones, from Chatham in Kent.

Jones, believed to be in her 40s, married British hacker-turned-extremist Junaid Hussain and converted to Islam, before the two were believed to have travelled to Syria separately where she has been making her threats via Twitter.

Changing her name to Umm Hussain al-Britani, the mother of two allegedly tweeted messages of hate such as: ‘You Christians all need beheading with a nice blunt knife and stuck on the railings at raqqa … Come here I’ll do it for you!’

Sally Jones is believed to be the woman in this picture, brandishing an AK-47 rifle (Picture: Twitter)

Although her Twitter and Facebook accounts have since been deleted, she also revealed that she and her husband may have travelled to the ‘Islamic State’ (another name for the Caliphate) after being stuck in Syria for seven months.